Light-emitting device and material therefor
AssigneeFuji Photo Film Co., Ltd.
InventorsHisashi Okada, Toshihiro Ise, Masayuki Mishima, Toshiki Taguchi
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Abstract
A light-emitting device comprising a pair of electrodes formed on a substrate, and organic compound layers comprising a light-emitting layer provided in between the electrodes, wherein at least one of the organic compound layers comprises a heterocyclic compound having at least two hetero atoms and a phosphorescent compound.
Claims28
A polymer comprising a repeating unit represented by formula (D-I):
- wherein ArD represents an arylene group or a divalent heterocyclic group;
- RD1 and RD2 each independently represent a hydrogen atom or a substituent;
- nD represents an integer of 0 to 3;
- and mD represents an integer of 0 to 5.
A light-emitting device comprising at least one organic compound layer comprising a light-emitting layer between a pair of electrodes wherein the at least one organic compound layer comprises a heterocyclic compound comprising a repeating
- unit represented by formula (D):
- wherein ArD represents an arylene group or a divalent heterocyclic group;
- RD1 and RD2 each independently represent a hydrogen atom or a substituent;
- nD represents an integer of 0 to 3;
- mD represents an integer of 0 to 5;
- and m′ represents 0 or 1.
The light-emitting device comprising:
- at least one organic compound layer comprising a light-emitting layer between a pair of electrodes, wherein the at least one organic compound layers comprise a heterocylic compound having at least two hetero atoms and a phosphorescent compound, and wherein the heterocyclic compound is represented by formula (I):
- wherein R represents a hydrogen atom or a substituent;
- X represents ═N— or ═N—Ra;
- Ra represents a hydrogen atom, an aliphatic hydrogen group, an aryl group or a heterocyclic group;
- and Q represents an atomic group necessary for forming a 5-membered hetero ring together with N and X,
- wherein the heterocyclic compound is a polymer comprising a repeating unit represented by formula (E):
- wherein ArE represents an arylene group or a divalent heterocyclic group;
- RE1 and RE2 each independently represent a hydrogen atom or a substituent;
- nE and mE each independently represent an integer of 0 to 5;
- and n′ represents 0 or 1.
Dependencies are inferred from the claim text.